Browsing Tag Earth

Product Description
The Earthkeepers™ collection contains durable, high-quality footwear made in an environmentally-friendly way. Express your love for style, comfort, and the Earth in this sensational slide from Timberland®. Premium leather upper offers a fashionable appearance. Soft leather lining wicks away moisture to help keep the foot dry. Green Rubber™ 42% recycled outsole delivers traction on a variety of surfaces. This shoe is 70% recyclable, and designed for disas… More >>

Timberland Women’s Earthkeepers Greenside Slide,Tan,6 M US

As an engineer in the energy field, I dedicate my expertise to promote and develop the renewable energy application in Indonesia. Please work together with me to save our earth for a better future.

The heat of the Earth makes up what is known as geothermal energy. When dust and gasses from Earth mixed together 4 billion years ago, geothermal energy resulted.

Inside the Earth at its core, some 4, 000 miles deep, the temperature is estimated at about 9,000 degrees Fahrenheit. Geothermal energy has been used throughout history for bathing, relaxing, cooking and heating. It was thought by some to have healing effects and was used to treat eye and skin diseases. The first geothermal generator that produced energy was built in Lardarello, Italy in 1904. The United States followed with their first attempt at geothermal power in 1912 at The Geysers in California. Today it is produced in twenty-one countries around the world.

Geothermal energy is located deep in the ground. The heat at the core of the Earth has an outward flow. As it moves, it is transferred to surrounding rock layers called the mantle. As temperatures and pressure increase, the rock melts and becomes magma. The magma moves toward the surface of the earth carrying the heat with it. If the magma reaches the Earth’s surface, it becomes lava. However, most of it stays below the Earth’s crust and heats rocks and water that surround it. These temperatures can reach up to 700 degrees Fahrenheit. When the water travels to the Earth’s surface, it becomes hot springs or geysers. Mostly it stays trapped in fractured, porous rocks called geothermal reservoirs. This heat near the Earth’s surface becomes a form of energy.

Hot water or steam from the reservoir exerts a force that can spin a turbine connected to a generator and produces electricity. The cooled water is then returned to the reservoir in order for it to reheat. Much exploration and testing needs to be done to determine where the geothermal underground waters are. When ideal spots are located, drilling is done to create production wells that bring the water to the Earth’s surface for power generation in geothermal power plants.

Although the costs to construct geothermal plants and geothermal wells are high, the cost of producing electricity is lower over time. The fuel is reliable, stable and does not need to be transported. The white smoke you will see over geothermal power plants is not smoke but rather steam. During the process of operations it may, however, bring some hazardous gases from underground.

The United States stands as the biggest producer of geothermal energy. Unfortunately, interest in it is low and it only accounts for about 1% of this country’s energy supply. Through research and experience new methods and technologies for accessing geothermal energy will improve. Tapping into the heat under the Earth’s surface can produce much more of the nations energy. We are at a point where renewable energy sources must make their way to the forefront of the energy picture. Not only are fossil fuels being depleted, but also they are ruining our air quality. In time, geothermal energy may become an appealing alternative. Competitive pricing and minimal environmental impact could produce a hot future for this renewable energy source.

With people looking for more and more ways to find renewable energy sources, many don’t realize they are standing on top of one of the greatest energy resources on the planet. The Earth’s core is at an unbearable temperature, hotter than anyone could possibly even fathom. This heat builds up so much pressure in the Earth’s core that it has to be released in some way. These releases are known as geothermal energy. The hot water and steam from the Earth can be used in a number of ways to create energy. This is a renewable energy because the heat in the Earth’s core is constant and the water replenishes from rainfall.

There are different ways to use geothermal energy that include direct and indirect uses.

- The heat from the Earth could be used as a direct source for heating systems. The hot water close to the Earth’s system is directly pumped into heating systems.

- Generators in power plants require steam at very high temperatures to work. Geothermal power plants are built near reservoirs to tap the natural resource. The power plants use steam or water close to the surface to operate its generator.

- Geothermal heat pumps use water near the Earth’s surface to control building temperatures. This renewable energy source can regulate entire towns and villages.

Using geothermal energy isn’t a new concept. History has shown that people in ancient times have used hot springs for cooking, bathing and heating purposes. Even today many believe that natural hot springs have healing powers. There are many people who still bathe in hot springs. In Reykjavik, Iceland 95 percent of the buildings are heated with geothermal district heating systems. Hot water near the Earth’s surface is pumped directly into the buildings.

The Unites States is one of the leaders in geothermal power. The country has more geothermal power plants than any other, however, it only accounts for one percent of the electricity produced in the U.S. California (33), Nevada (15), Hawaii (1) and Utah (1) are the only states with geothermal power plants.

There are opponents of geothermal energy. While there are uses for it, criticisms have been raised. Some believe this is not a long term solution nor could it be used in huge environments. There are others who think creating geothermal power plants would cost too much money and drain money from researching other valuable energy resources. People are also concerned that if magma is tapped, it could bring up dangerous and harmful particles.

One thing is certain, more research is needed to make an educated conclusion about geothermal energy. There is too much guessing going on and not enough doing. There are results of natural geothermal reactions. These happen everywhere and come in the form of volcanoes, hot springs and geysers. With geothermal reactions occurring naturally, humans should find a safe way to tap into it.

• Astra Best Toys for kids 2009
• Best seller
• Green Essentials
• Experiments in sustainability
• Ages 10 and up

Product Description
To live sustainably, we must use Earth’s resources at a rate at which they can be replenished, and thus provide for future generations to live as we have. In this kit, you can learn about alternative energy and sustainable living by conducting experiments and building energy-related models. Thirty of the best experiments and the ten most important building projects from the original Power House kit are presented in this new Green Essentials Edition. The ten buildi… More >>

Thames and Kosmos Alternative Energy and Environmental Science Power House Green Essentials

• ISBN13: 9781592579174
• Condition: New
• Notes: BUY WITH CONFIDENCE, Over one million books sold! 98% Positive feedback. Compare our books, prices and service to the competition. 100% Satisfaction Guaranteed

Product Description
An essential how-to on powering your home with sun, wind, water, and more.

For readers wanting to save money-and the planet-by using alternative energy, this book provides everything they need to know. The five basic sources are fully covered: sun, wind, water, earth, and bio. The benefits, what is needed, and whether it will work for a particular home are all carefully laid out in this comprehensive overview:

• Solar energy for home heating… More >>

The Complete Idiot’s Guide to Renewable Energy for Your Home

Many of us have some knowledge regarding “renewable energy”, some have concerns but the majority doesn’t know much. Here below are some very important things you should definitely know regarding this hot topic that may enlighten you for future decisions. A change in the way and methods to provide electric energy worldwide is becoming more and more widespread and urgent.

Clean vs not clean
As you may already know solar and wind power are two most diffuse renewable sources with an incredible and clean potential and with no damage for the environment and our lives. Traditional non-renewable sources such as coal and oil, on the other hand, are the most exploited and damaging power sources on the Earth with a huge impact on the environment and our lives. You may find interesting that only the 0.02% of the whole solar energy that reaches the surface of our planet would be enough to provide the energy we consume worldwide with no extraction or transport expenses.

Prices
In terms of money it may be true that coal and oil energy is cheaper in comparison with wind and solar energy but not in terms of lives. In fact studies have demonstrated that while 50,000 people a year -only in the United States- die for causes attributable to air pollution most of which is created by coal fueled power plants, no one dies for causes attributable to wind, solar or other renewable energy fueled power plants. So if one of the most advanced countries pays with the death of 50,000 people a year for its energy how much will other countries where the level of security is much lower pay? There is more, do you think that the life of “50,000″ people a year is worth the effort of trying to produce a bit more expensive (for now) but safe renewable energy? It has to be said that nowadays the prices for wind energy production have consistently dropped to the level where they can easily compete with traditional power production systems and solar energy’s technologies are in the perspective to cut 90% of the production prices by 2010 at no life cost.

The best renewable sources available
Indubitably the best renewable sources are wind and solar energy. And many are the reasons why we should say this: They are the most ancient energy sources available and since they influence our planet no damages have been caused. Human kind has already been using wind energy for at least 5,500 years for various reasons, and solar energy is vital for the whole ecosystem. Wind and solar energy ere constantly and widely spread, there is no need to mine or extract them, they are given to us for free Our global power consumption is a tiny fraction of their full potential They can easily be implemented in remote areas Best of all the pollution produced exploiting them is equal to 0

My hope is that now you have seen some of the benefits of renewable sources you’ll have a clearer vision and stronger consciousness on what renewable energy is and what it can do for us from now to years to come. There is much more to be said about this hot topic but it’s not possible to do so in a short article like this, anyway I would like to encourage you to do more research because every effort is worth.
In conclusion the free gift we have received with renewable sources is something that cannot be left behind or neglected anymore; it’s something that can make life better in a better world.

We should be doing everything possible to develop geothermal energy technologies. This is a largely untapped area of tremendous alternative energy potential, as it simply taps the energy being naturally produced by the Earth herself. Vast amounts of power are present below the surface crust on which we move and have our being. All we need do is tap into it and harness it.

At the Earths’ core, the temperature is 60 times greater than that of water being boiled. The tremendous heat creates pressures that exert themselves only a couple of miles below us, and these pressures contain huge amounts of energy. Superheated fluids in the form of magma, which we see the power and energy of whenever there is a volcanic eruption, await our tapping. These fluids also trickle to the surface as steam and emerge from vents. We can create our own vents, and we can create out own containment chambers for the magma and convert all of this energy into electricity to light and heat our homes. In the creation of a geothermal power plant, a well would be dug where there is a good source of magma or heated fluid. Piping would be fitted down into the source, and the fluids forced to the surface to produce the needed steam. The steam would turn a turbine engine, which would generate the electricity.

There are criticisms of geothermal energy tapping which prevent its being implemented on the large scale which it should be. Critics say that study and research to find a resourceful area is too costly and takes up too much time. Then there is more great expense needed to build a geothermal power plant, and there is no promise of the plant turning a profit. Some geothermal sites, once tapped, might be found to not produce a large enough amount of steam for the power plant to be viable or reliable. And we hear from the environmentalists who worry that bringing up magma can bring up potentially harmful materials along with it.

However, the great benefits of geothermal energy would subsume these criticisms if only we would explore it more. The fact that geothermal energy is merely the energy of the Earth herself means it does not produce any pollutants. Geothermal energy is extremely efficient-the efforts needed to channel it are minimal after a site is found and a plant is set up. Geothermal plants, furthermore, do not need to be as large as electrical plants, giant dams, or atomic energy facilities-the environment would thus be less disrupted. And, needless to say, it is an alternative form of energy-using it would mean we become that much less dependent on oil and coal. Perhaps most importantly of all-we are never, ever going to run out of geothermal energy, and it is not a commodity that would continuously become more expensive in terms of real dollars as time passes, since it is ubiquitous. Geothermal energy would be, in the end, very cheap, after investigation and power plant building costs are recouped.